diff -r 123470911257 -r 9913b19c0948 hotspot/test/compiler/loopopts/6659207/Test.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/loopopts/6659207/Test.java	Tue Nov 18 19:44:45 2014 +0100
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/*
+ * @test
+ * @bug 6659207
+ * @summary access violation in CompilerThread0
+ */
+
+public class Test {
+    static int[] array = new int[12];
+
+    static int index(int i) {
+        if (i == 0) return 0;
+        for (int n = 0; n < array.length; n++)
+            if (i < array[n]) return n;
+        return -1;
+    }
+
+    static int test(int i) {
+        int result = 0;
+        i = index(i);
+        if (i >= 0)
+            if (array[i] != 0)
+                result++;
+
+        if (i != -1)
+            array[i]++;
+
+        return result;
+    }
+
+    public static void main(String[] args) {
+        int total = 0;
+        for (int i = 0; i < 100000; i++) {
+            total += test(10);
+        }
+        System.out.println(total);
+    }
+}